How To Fix Stabilitrak On Chevy Traverse

In that location are so many reported problems with this Traverse "StabiliTrak and Traction Control" issue across the net, that I've come up to the conclusion that the main culprit is the throttle body (TB). That is to say, the TB gets contaminated past all the oil and oil vapor that condenses in the intake hose then proceeds to gum up and compromise the TB stepper motor shaft over time. This is especially true in cold wet weather situations when the gummed up shaft tends to stick very hands due to modest amounts of frost and ice forming on the TB; thereby making the stepper motor loose its ability to sense TB position.

The best manner to keep these TB related StabiliTrak issues from occurring is to clean the TB regularly. I clean and inspect every 5000 miles when an oil change is due. If you take it to a dealer at oil change, they will not perform this TB service unless you specifically inquire them to do information technology. Then again, this service will cost yous a few $$$ actress at the dealer -- better to do it yourself and save the $100.

Outset and nigh IMPORTANT -- REMOVE the IGNITION Fundamental from THE CAR and put it in your pocket. Do NOT go out the ignition in the "ON" position, or you tin can damage the TB stepper motor.

Side by side remove the vent inlet fitting from the intake hose (the hose that sits between the air filter housing and the TB) -- pinch the gray clips on each side and the plumbing equipment pops correct off. Be conscientious, don't mess up the plumbing equipment or you'll get an air leak and an eventual problem code volition be set because this fitting is located after the Mass Air Period (MAF) sensor.

Undo the hose clamps at each end of the intake tube (1 at the TB itself, and the other immediately to the left to the MAF) and pull the tube costless from the TB.

Take a tin can of TB cleaner and thoroughly clean the TB inside and out and wipe with a fabric rag to get all the clay and crud. If you've never done this on your auto and information technology has some miles on it, then you'll be surprised how dirty and "viscid" that TB is. Pay shut attention to the ii areas where the TB shaft enters the TB housing. It'south these areas that get gunked up and make the TB stick. Use a straw on the TB cleaner can and spray these areas while moving the TB flap back and forth with your free paw. Follow up with a clean rag and echo this procedure until no more than gunk and crud leaches out from these areas -- done!

Adjacent, take the intake tube and thoroughly clean out the oil trap that is molded into the tube. Spray brake or carb cleaner down the vent tube nipple and while using you other hand to hold a rag on the within of tube to take hold of the crap that volition exist released. What you see has accumulated in only 5000 miles of driving -- people who take never done this before have literally a few ounces of oil accumulated in that well. Much of that oily residuum stuff eventually winds up in the TB and screws things up royally.

It takes a good x minutes to thoroughly clean that entire tube free of oil. Once that'due south done, supercede and fasten the tube dorsum on the TB and button upwardly the two hose clamps. Also, deeply  supplant the vent tube fitting on the vent tube nipple and everything should exist good to get.

Now do the oil modify if you're and so inclined -- BTW GM at present recommends a PF-63  AC Delco filter for this car because the original PF-48 was just a tad besides small-scale. The PF-63 is longer and thus provides more filter fabric to clean the oil. The automobile uses 6qts and information technology's VERY critical that it gets plenty oil because in previous years the Traverse had serious oiling problems with the timing chain -- lots of expensive timing concatenation failures due to oil starvation.

BTW -- once all this cleaning is completed, the auto will be hard to starting time and it will stutter and stumble until all that TB cleaner is evacuated from the intake manifold and sent through the combustion sleeping room. During this time  the instrument console will prove all sorts of warning lights at outset-up. This condition volition simply concluding for 20-30- seconds and volition subside quickly -- no worries!

Source: http://garagegazette.com/index.php?topic=113.0

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